What you don't know about your automotive air filters Do you know that every vehicle has an engine air filter that cleans the air going into the engine,but not all have a cabin air filter that cleans the air going into the passenger compartment? It is easy to get these two kinds mixed up. Much of the confusion starts because cabin air filters are relatively new. The fact,many air conditioning systems in cars that are built after the year 2000 have a cabin air filter inside of them. You know,it's ironic that many people don't realize they even have a cabin air filter first find out they do when it starts to get smelly autel ms908p. Some people confuse their cabin air filter with the engine air filter. The cabin air filter prevents dust,pollen,and other debris from entering the passenger compartment through the climate control (HVAC) system and ensures tha ... Read more »